[Resolved] My forum is gone

I’m using BP 1.5.1, I didn’t have problem until days ago, but now, all the forum posts are gone.. I’m surprised.. what is going? The forums and posts are in the table, there are no expiration configuration, but BP doesn’t show the forums.. You can see here: http://www.forumimobiliario.com.br/forums/ .. can you help me?

== I’m using BP 1.5.1, I didn’t have problem until days ago ==
Did you just upgrade and/or install a new theme or plugin recently?
Did you go through the Installation Wizard?
Have you gone to dashboard menu BuddyPress > Forums > Forums for Groups – and clicked on Use Existing Installation?

After long time and many tests, I found the problem: when my site was hacked, I changed all passwords… all? No! I forgot a password in bb-config.php.. (holy shit..!). I erased the old user then bbpres can not connect to database.. The system doesn’t says nothing for me, no error message, no blank page.. just doesn’t shows my foruns… rs.. I really sorry about this.. thank you..